IIT JEE , AIEEE Forum - Physics , Optics

001sri

wave fronts r the form or shape of light waves which is spherical.
hygens principle states light as a mechanical wave travelling in a medium thought of as ether(we dont have to do anything wid it).
now as this wave travell in this medium it is propagated as a disturbance and as we observe in the case of sound waves vibrating particles vibrate others to transfer energy(as usual)

so as wave passes through a point the point becomes the virtual source of light mechanical waves and this is considered as secondary source of light or new wave fronts r assumed to b originating from this point called secondary wavelets.

let me know if u r satisfied or want more explanation

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